HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
London City

$344+ Cheap flights from Seattle (SEA) to London City (LCY)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/30. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LCY
Feb 13 — Feb 201
Fri 2/13
Fri 2/20
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Seattle to London City with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Seattle to London City

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to London City (LCY). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 14, 2026.

Most accurate provider

Expedia
2 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$622
(Cheapflightsfares)

One-way from

$344
(Trip.com)

Popular in

June

Cheapest in

January

Average price

$641
Provider with most accurate pricing for Seattle/Tacoma Intl-London City flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-London City flights.
Search Deals
From Seattle/Tacoma Intl to London City
Search Deals
One-way flight from Seattle/Tacoma Intl to London City
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($138 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($23 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Find flight deals from Seattle to London City

Cheapest flights from Seattle to London City
Explore the most affordable flight options available from Seattle to London City. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 14, 2026.

This Cheapflightsfares deal was found by Cheapflights users on 1/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/410:55 am
SEA
-
LCY
2 stops18h 00m
SWISS
Mon 3/99:15 am
LCY
-
SEA
2 stops20h 30m
SWISS
Deal found 1/12$622
This KAYAK deal was found by Cheapflights users on 1/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/312:32 pm
SEA
-
LCY
2 stops20h 33m
SWISS
Mon 3/97:10 pm
LCY
-
SEA
2 stops34h 35m
SWISS
Deal found 1/12$636
This KAYAK deal was found by Cheapflights users on 1/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/410:58 am
SEA
-
LCY
2 stops37h 47m
SWISS
Mon 2/95:45 pm
LCY
-
SEA
2 stops35h 27m
SWISS
Deal found 1/14$637
This KAYAK deal was found by Cheapflights users on 1/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/142:52 pm
SEA
-
LCY
2 stops18h 38m
SWISS
Wed 10/219:15 am
LCY
-
SEA
2 stops17h 21m
SWISS
Deal found 1/12$642
This Virgin Atlantic deal was found by Cheapflights users on 1/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/163:05 pm
SEA
-
LCY
1 stop20h 30m
Virgin Atlantic
Mon 2/236:55 pm
LCY
-
SEA
1 stop24h 45m
Virgin Atlantic
Deal found 1/12$645
This Virgin Atlantic deal was found by Cheapflights users on 1/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/236:10 am
SEA
-
LCY
2 stops18h 40m
Virgin Atlantic
Mon 3/28:05 pm
LCY
-
SEA
1 stop23h 30m
Virgin Atlantic
Deal found 1/12$650
This Virgin Atlantic deal was found by Cheapflights users on 1/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/196:10 am
SEA
-
LCY
2 stops18h 00m
Virgin Atlantic
Mon 2/238:05 pm
LCY
-
SEA
1 stop23h 35m
Virgin Atlantic
Deal found 1/12$653
This Virgin Atlantic deal was found by Cheapflights users on 1/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/43:05 pm
SEA
-
LCY
1 stop18h 15m
Virgin Atlantic
Wed 2/189:20 am
LCY
-
SEA
2 stops20h 45m
Virgin Atlantic
Deal found 1/13$655
This KAYAK deal was found by Cheapflights users on 1/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/810:48 am
SEA
-
LCY
2 stops23h 52m
SWISS
Wed 5/61:10 pm
LCY
-
SEA
2 stops37h 20m
SWISS
Deal found 1/12$656
This KLM deal was found by Cheapflights users on 1/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/191:50 pm
SEA
-
LCY
1 stop11h 40m
KLM
Wed 9/210:00 am
LCY
-
SEA
1 stop14h 35m
KLM
Deal found 1/12$657
This Virgin Atlantic deal was found by Cheapflights users on 1/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/173:05 pm
SEA
-
LCY
1 stop18h 15m
Virgin Atlantic
Sat 2/288:40 am
LCY
-
SEA
2 stops20h 06m
Virgin Atlantic
Deal found 1/12$658

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to London City that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 14, 2026.
Use the filters below to find and compare flights from Seattle to London City Airport that are best for you.

Fly from

Seattle

Fly to

London City

Route

Depart

Return

Price

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Thu 2/19

6:10 am-8:10 am

2 stops18h 00m

London City

Mon 2/23

8:05 pm-11:40 am

1 stop23h 35m

$653

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Wed 3/4

3:05 pm-5:20 pm

1 stop18h 15m

London City

Mon 3/9

7:45 am-7:46 pm

2 stops19h 01m

$658

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Mon 3/2

3:05 pm-6:25 pm

1 stop19h 20m

London City

Mon 3/16

7:45 am-10:22 pm

2 stops21h 37m

$658

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Sun 4/12

5:30 pm-4:40 pm

1 stop15h 10m

London City

Mon 4/20

10:00 am-11:45 am

1 stop33h 45m

$659

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Wed 4/1

1:45 pm-9:30 am

1 stop11h 45m

London City

Wed 4/8

9:20 am-4:30 pm

1 stop15h 10m

$659

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Tue 3/10

10:55 am-12:55 pm

2 stops19h 00m

London City

Tue 3/17

7:10 pm-10:45 pm

2 stops34h 35m

$664

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Thu 2/26

12:32 pm-5:05 pm

2 stops20h 33m

London City

Thu 3/5

9:15 am-8:58 pm

2 stops19h 43m

$664

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Wed 2/11

3:05 pm-5:20 pm

1 stop18h 15m

London City

Mon 2/23

8:05 pm-11:40 am

1 stop23h 35m

$698

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Sun 5/3

1:45 pm-7:45 pm

1 stop22h 00m

London City

Mon 5/11

9:20 am-11:26 pm

2 stops22h 06m

$719

SeattleLondon

SEA - LCY

SEALCY

Seattle/Tacoma Intl

Tue 4/14

5:30 pm-4:40 pm

1 stop15h 10m

London City

Tue 4/21

10:00 am-9:49 pm

2 stops19h 49m

$722

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/14

Showing 1-10 of 22 results
1
2
3
  • Most accurate provider: When it comes to deals on Seattle-London City Airport flights, users find the pricing of Expedia to be most consistent on Cheapflights vs. Expedia Users can find the same prices on Seattle-London City Airport flight deals on Cheapflights vs. Expedia 90-95% of the time. Price accuracy is based on data collected from Seattle-London City Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-London City Airport flights, Cheapflights users trust Expedia the most. Expedia has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-London City Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Seattle to London City

Have a flexible travel schedule? Discover the best time to fly to London City from Seattle with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Reviews of airlines servicing London City

Get insights into the airlines that provide service to London City. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to London City. Reviews last updated January 14, 2026.
Get a feel of what it's like to fly with Scandinavian Airlines from Seattle to London City Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Scandinavian Airlines
7.3
Good
1,649 reviews

Comfort

7.3

Boarding

7.6

Entertainment

6.6

Crew

8.0

Food

6.6

Overall

7.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

SFO - CPH

Flight was changed causing 5 hour layover in Copenhagen And no accommodations were made to account for this at the lounge or anything like that
Scandinavian Airlines
7.3
Good
1,649 reviews
Scandinavian Airlines
7.3
Good
1,649 reviews

Comfort

7.3

Boarding

7.6

Entertainment

6.6

Crew

8.0

Food

6.6

Overall

7.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

SFO - CPH

Flight was changed causing 5 hour layover in Copenhagen And no accommodations were made to account for this at the lounge or anything like that

Related info for your journey

Find useful and relevant information for your journey from Seattle to London City. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Seattle to London City?

    Located just 11.4 mi from the city center, Seattle/Tacoma Intl is the airport most travelers will use when flying to London City from Seattle. Booking flights from Seattle/Tacoma Intl (SEA) to London City should be relatively easy as there are 0 daily outbound flights to London City from 1 airline.

  • How long is the flight from Seattle to London City Airport?

    A quick flight from Seattle to London City Airport can take about 15h 10m. Virgin Atlantic provides one of the quickest options available for as low as $659. Seattle and London City Airport are separated by a distance of 4794 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What is the cheapest airline to fly from Seattle to London City Airport round-trip?

    According to our current data, Scandinavian Airlines ($962), offers the cheapest pricing from Seattle to London City Airport.

  • Can I find deals for flights from Seattle to London City that include hotel bookings?

    Yes. In addition to deals on Seattle to London City flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to London City?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to London City.

  • Can I find deals for business class flights from Seattle to London City?

    Yes. Cheapflights offers flight deals from Seattle to London City by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near London City Airport?

Book flights to London City Airport if you plan to visit one of these locations
Ilford
Hounslow
Southend-on-Sea
Harrow
Eastleigh
Gatwick
Dartford
Dover
Winchester
Croydon
Orpington
Watford
Hayes
Borehamwood
Aylesbury
Chipping Norton
Horley
Kingston upon Thames
Eastbourne
Sutton

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top airline flying from Seattle to London City

Discover the top airline that operate flights from Seattle to London City. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 14, 2026.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$962Average$1,000FlexibilityNo cancel feeOn-time77%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.